Home / 89,186.40-133,779.60-30,015.90

Finding the Fourth Proportional to 89,186.40, 133,779.60 and 30,015.90

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Solution

The fourth proportional to 89,186.40, 133,779.60 and 30,015.90 is: 45,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,186.40 : 133,779.60 = 30,015.90 : x
  2. Step 2: Convert to fraction form
    89,186.40/133,779.60 = 30,015.90/x
  3. Step 3: Cross multiply
    89,186.40x = 133,779.60 × 30,015.90
  4. Step 4: Simplify right side
    89,186.40x = 4,015,515,095.64
  5. Step 5: Solve for x
    x = 4,015,515,095.64/89,186.40
  6. Step 6: Final answer
    x = 45,023.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.